POJ 1005 & ZOJ 1049 & UVA 2363

#include <iostream>

using namespace std;
#define PI 3.141592653

int main()
{
int test_num;
cin >> test_num;
double x,y;
double area;
int year;
for(int i = 1 ; i <
4000
= test_num; i++)
{
cin >> x;
cin >> y;
area = (x * x + y * y) * PI / 2;
year = int(area/50)+1;
cout << "Property " << i <<": This property will begin eroding in year " << year <<"." <<endl;
}

cout << "END OF OUTPUT" << endl;
}